公开(公告)号：US06776190B2

公开(公告)日：2004-08-17

申请号：US10117884

申请日：2002-04-08

Applicant: Randy Schoepke ,  Richard Berg

Inventor： Randy Schoepke ,  Richard Berg

IPC: F15B13044

CPC classification number: F02M61/168 ,  F02M47/027 ,  F02M63/0015 ,  F02M63/004 ,  F02M63/0045 ,  Y10T137/86622 ,  Y10T137/86686

Abstract: This invention pertains generally to valve lift spacers that determine the travel distance of a valve member, such as movement between upper and lower seats. In the case of pressure switching valves, such as those used in the fuel injection industry, valve travel distance is often relatively small. Because of realistic machining tolerances, it is often difficult to mass produce valves that consistently exhibit comparable travel distances, especially when those distances are on the order of microns. The present invention addresses this issue by providing valve lift spacers with a variety of thicknesses in order to compensate for the inevitable variation that would otherwise be produced due to the various valve components having realistic geometrical tolerances. The valve lift spacer and a valve using the same finds a principal use in fast response pressure switching valves, such as those utilized in electro-hydraulic actuator portion of a fuel injector.

Abstract translation: 本发明通常涉及确定阀构件的行进距离的气门升程间隔件，例如上座椅和下座椅之间的运动。 在诸如在燃料喷射工业中使用的压力切换阀的情况下，阀行程距离通常相对较小。 由于实际的加工公差，通常难以大量生产始终表现出类似行程距离的阀门，特别是当这些距离在微米量级时。 本发明通过提供具有各种厚度的气门升程间隔件来解决这个问题，以便补偿由于各种阀部件具有现实几何公差而否则将产生的不可避免的变化。 阀提升间隔件和使用该气门升程间隔件的阀在快速响应压力切换阀（例如在燃料喷射器的电动液压致动器部分中使用的那些）中主要使用。